My wife and I have just returned from our first cruise and are eager for our next..This time with our two children ....age 8,9.We are looking at getting an interior stateroom(we had a balcony last time and we were hardly in it).In the literature it indicates up to 4.I thought I saw or heard that the was a type of "bunk " or "ceiling" bed...can anyone give me an fyi on this bed or how the usual accomodations are for 4 in the staterooms ...Thanks a Bunch!!!1